Autographic film cartridge



Nova L 1932. J SCANNELL 1,886,053

AUTOGRAPHIC FILM CARTRIDGE Filed Feb. 24. I950 I this end Patented Nov. 1, 1932 PATENT OFFICE UNITED STATES -JOHIP. OAK PM mnmrs, ASSIGKO: TO anwm CHICAGO, nil-U018 auroenarmc rm! CARTRIDGE Application fled Iebraary M, 1980. Serial Io. MA.

rangement of (parts, all as hereinafter more fully describe claimed and illustrated in the accompanying drawing wherein:

Fig. l is a fragmentary vertical section so through one end of a camera, transversely through the autographic opening in the case thereof, illustrating the positions of the vari- 03s elements during the autographic opera on;

18 Fig. 2 is an enlarged longitudinal section taken through the film embodying the present invention;

Fig. 3 is an elevation of a fragment of the present film, parts thereof being broken 80 away; 7

F1g. 4 is an elevation of a fragment of a negative film illustrating the autograph thereon; and

Fi 5 is an elevation of a fra ent of 38 positive print with the autograph t ereon.

The resent invention contemplates the production of an autograph upon a positive print in relatively dark characters upon a relatively light field andproposes to accom- 40 plish this by the use of a radio-responsive ray-e 'tting substance coacting with the negative film to create a photograph of the desired autograph thereon in re atively light characters upon a relatively dark field. With in view the normal opaque paper backing tively thin or translucent white paper backing, or a paper backing through which the actinic rays may pass. The inner face of this paper backing, that is'the face adjoining invention consistsin the construction, combination and ar-- the film except of a roll film is replaced by a relathe non-sensitive face of the film, is provided with a' transverse panel of radio-responsive ray-emitting material or substance, such, for

instance, as hosphorescent calcium sulphide. After this t e entire inner face of the paper backing, including the aforesaid panel, is coated with an opaque or light obstruct' compound, such as lamp black mixed wi gelatin many other suitable material. Thus the aper. backing and the opaque coating is at of radio-responsive ray-emitting inaterial or substance on the inner face of the paper backing.

The radio-responsive ray-emitting matenainmarcn. or

times between the film and the strips rial ordinarily does not become radio-active until it is exposed to light, hence it does not in any manner afiect the film prior to the exposure thereof. It may, also be pointed out that usually the application of heat to the radio-responsive, ray-emitting material will effective y render it inactive till exposed to light. After the exposure 0 the film the autograph may be written in substantially light obstructing characters upon the outer surface of the paper back at the point where the radio-responsive rayemitting material is located. As the film is wound upon the take-up spool this radioresponsive, ray-emitting strip being so positioned upon the paper back, will be located at or against the sensitized face of the autograph panel of the film, which is known as the space between exposures. When the radio-responsive, ray-emitting panel is thus positioned it will affect the sensitized face of l as to those portions of the panel that are covered by the substantially light obstructing characters in which the autograph is written. Thus a relatively dark field. surrounding relatively light characters is created upon the negative film, by the rays emitted by the panel acting through the back and consequently, when reproduced create an autograph acters surrounded by a relatively light field. -Reference being had more particularly to the drawing, 10 designates a camera case having an autograph opening 11 therein. An autographing table 12 is positioned within in relatively dark chari the camera directly opposite to the o ening 11 which is designed to be closed by t e gate 13. The film 14 and its paper back 15 passlto the take-up spool 16 from the feed spoo tween the back wall of the camera case 10, gilerced by the opening 11 and the table 12.

V us, as the film 14 and its pa r back 15 pass from the spool 16 to the ta e-up spool, the aper back 15 thereof faces the autographing opening 11 while the film 14 faces the table 12.

The construction of the film roll contemplates a back 15 of paper which may be white or any other color that'will permit the passage of the actinic rays through said back. At intervals on the inner face of this paper back 15 are placed transverse panels 17 of a radio-responsive ray-emitting compound or substance such as phosphorescent calcium sulphide or its e uivalent. I One anel 17 is provided for one exposure of t e film 14 and the back 15 may be provided with a surface indication (not shown) which ma be observed through the opening 11 to ind cate that the corresponding anel 17 is in position to receive the autogra After amexposure is made on the body 0 the film 14, the spools are adjusted, if necessary to bring the appropriate panel 17 into alignment with the opening 11. The gate 13 may then be opened and the light admitted through the o ning 11 willimmediately render the panel 1 positioned opposite the opening 11 ray-emitting. The inscription may be written in substantially light obstructing characters either with pencil or ink through the autographing opening 11 upon the outer face of the paper back he the surface of the panel. 17,

15 located over the table 12 acting as a support during the writing operation. As the film is wound upon the take-up spool, the autographing panel 17 is so positioned on the paper back 15 that it will be located opposite to and in cooperation with the autographing space or. space between exposures of the film. In this position the rays emitted by the anal 17 acting through the back 15 will a cot the entire sensitized autogra hic panel of the film to produce a dark fie d surrounding characters corresponding to such portions of the panel 7 as are covered by the light obstructin characters of the autograph. Hence, as lustrated in Fig. 4 there is a relatively dark background 19 created by the rays emitted by the panel 17 surrounding light characters 20. In the final print 21, illustrated in Fig. 5 and reproduced from the negative shown in Fig. 4 t e autograph panel 22 is relatively light having relatively dark characters 23 therein. v

To protect the film from any direct contact with the radio-responsive ray-emitting panels 17 and fromlight pasing through the back 15 at all other points, the entire inner face (not shown) and in so doing pass be of the paper back 15, including the uncle 17 is covered with an gpaque or;) bstructin coatin 0 an sui e an stance 0% compolfiid f It has can foundthat the back 15 to comp etely separate the panels 17 vfrom the film 14 but it also efiectively prevents any li ht from passin inwardl through the bac 15 to act on t e film an confines the rays emitted by the panels 17 to and through the adjoining portions of the back 15.

From the foregoing it is manifest that a method and a paratus for autographing photo aphic is herein provided utilizmg lig t as a means of creating the autograph on the negative but which protects the film wholly and entirely from contact with the source of light except as to such points where the source of light creates the autograph.

Whiz; is claimenllnis film 1. autograp 'c compnsmg' a a light transmitting back therefor, spaced ra -emitting panels arranged transversely of said back on the face thereof, adjoining the film, and a light obstru coating on the inner face of said back forming a. permanent part thereof and covering said panels.

2. An autographic film comlparisinfila film, an actinic ray transmitting ck erefor,

aced radio-responsive ray-emittin e arranged transversely across the cc of said back adjoining the film, and an actinic ray obstructing coating on the inner face of saicdkuback forming a permanent part of the 3. An autographic film compnsmg' a film, a relatively transparent back therefor, spaced panels arranged transversely on the inner face of said back containing phosphorescent calcium sulphide to radiate actinic rays thro covering the entire inner face of said back including the panels aforesaid to render the back incapable of light tron.

4. An autographic film of a film, a back having light ton properties, a transverse panel on the inner face of said back capable of radiating actin'ic rays outsaid back, and a coatingof opaque material 5110 wardly through said back to afiect the -scnsitized surface of the film when positioned adjoining the same, and a light obstructing coating extending over' the entire inner face of the back including the panel aforesaid.

'5. A photographic film including a. back capable of transmitting light, an actinic my emitting panel to radiate light through said back, and means for confining such radiation of said panel to and through said back.

6. A photographicfilm in combination with a back capable of transmitting light, of an actinic ray emitting coating on the inner fice of said back, and means for directing the rays Ifrog]: said panel exclusively through said 7. A photograghic film in combination with a back capab e of transmitting light, of an actinic ray emitting coating on the inner face of said back, and means for directing the rays from said anel exclusively through said back and comp eteiy obstructing the assage of light through said back at al other points.

8. A photographic film in combination with a back capable of transmitting light, of an actinic my emitting panel on the Inner face of said hack, and a light obstructing coating covering the inner face of said back and panel to direct the rays from said panel'exclusively through said back and obstructing the transmission of light through said back at all other points.

JOHN P. SCANNELL. 

